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ToolJar

Code formatters

Free code formatters that run in your browser: beautify or minify SQL, HTML, CSS and JavaScript, and turn Markdown into HTML with a live preview. Your code is never uploaded.

All Code formatters

Other categories

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Keyboard shortcuts

Global

  • Show this shortcuts dialogShift?
  • Toggle light / dark themeCtrlShiftL
  • Close dialogsEsc

Formatter & Validator

  • Format JSONCtrlEnter
  • Minify JSONCtrlShiftM
  • Copy outputCtrlShiftC
  • Download output as .jsonCtrlShiftS
  • Clear input and outputCtrlShiftX

Tree Viewer

  • Focus the search box/
  • Expand all nodesCtrlShiftE
  • Collapse all nodesCtrlShiftR

Diff

  • Swap document A and BCtrlShiftS

JSON tools

JSON FormatterPretty-print or minify
JSON ValidatorCheck strict JSON validity
JSON Tree ViewerBrowse JSON as a tree
JSON DiffCompare two documents
JSON Path FinderExplore JSONPath expressions
JSON → CSVFlatten JSON into rows
CSV → JSONTurn rows back into objects

JWT tools

JWT DecoderRead header, payload, claims
JWT VerifierCheck an HMAC signature
JWT Expiry Checkeriat, nbf and exp in local time
JWT GeneratorBuild a signed test token
Base64URL EncoderEncode or decode a segment

Code formatters

SQL FormatterBeautify or minify SQL
HTML FormatterBeautify or minify HTML
CSS FormatterBeautify or minify CSS
JavaScript FormatterBeautify or minify JS
Markdown to HTMLConvert with a live preview

Pages

JSON toolsFormat, validate, compare and convert JSON.
JWT toolsDecode, verify and generate JSON Web Tokens.
Code formattersBeautify and minify SQL, HTML, CSS and JavaScript.
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Theme

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